52684065839 has 2 divisors, whose sum is σ = 52684065840. Its totient is φ = 52684065838.

The previous prime is 52684065799. The next prime is 52684065881. The reversal of 52684065839 is 93856048625.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52684065839 is a prime.

It is a super-2 number, since 2×52684065839² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52684065739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26342032919 + 26342032920.

It is an arithmetic number, because the mean of its divisors is an integer number (26342032920).

Almost surely, 2^52684065839 is an apocalyptic number.

52684065839 is a deficient number, since it is larger than the sum of its proper divisors (1).

52684065839 is an equidigital number, since it uses as much as digits as its factorization.

52684065839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12441600, while the sum is 56.

The spelling of 52684065839 in words is "fifty-two billion, six hundred eighty-four million, sixty-five thousand, eight hundred thirty-nine".